Insulation.



FATENTED JULY 4, 1905.

G. A. WEBER.

INSULATION.

PPM-muon FILED PEB. 10.1903.

2 SHEETS-SHEET 1 PATENTED JULY 4, 1905.

G. A. WEBER. INSULATION.

PPLIOATION PILED FEB. 10.1903.

2 SHEETS-SHEET Y2.

ffl/nim el UNITED STATES Patented July 4, 1905.

PATENT GEORGE A. WEBER, OF NEW YORK, N. Y., ASSIGNOR TO THE WEBERRAILIVAY JOINT MANUFACTURING COMPANY, OF NEW YORK, N. Y., A CORPORATIONOF WEST VIRGINIA.

INSULATION.

SPECIFICATION forming part of Letters Patent No. 793,754, dated July 4,1905.

Application led February 10, 1903. Serial No. 142,732.

To /LZZ whom, 7115 may concer/L:

Be it known that I, GEORGE A. IEBER, a citizen of the United States, anda resident of the borough of Manhattan, city, county, and State of NewYork, have invented certain new and useful Improvements in Insulation,of which the following is a specification accompanied by drawings.

My invention relates to improvements in insulation, but moreparticularly to insulating bushings, sleeves, and washers, although thebroad principles of my invention may be applied to other suitable formsof insulation as desired.

The objects of my invention are to increase the life of dierent forms ofinsulation utilized under conditions where there is considerable wearand tear upon the partshas,` for instance, in those cases in which theremay be a rubbing against the insulation.

Further objects of my invention will hereinafter appear and to theseends my inven-v tion consists of the improved insulating parts embodyingthe 'features of construction,combinations of elements, and arrangementof parts, substantial-ly as hereinafter fully described and claimed inthis specilication and shown in the accompanying drawings, -in whichFigure l is an insulating sleeve or bushing embodying my invention.Figs. 2 and 3 are longi tudinal sectional views of modified forms of thesame. Fig. 4 is a side view of the outer metallic sleeve. Fig. 5 is aside view of the inner metallic sleeve. Fig. 6 is a side view of thesleeve of insulating material. Fig. 7 is a longitudinal sectional viewof a combined insulating sleeve and washer. Figs. 8 and 9 arelongitudinal sectional views of modilied form of Fig. 7. Figs. 10 and 1lare longitudinal sectional views of forms of sleeves and washersomitting the outer metallic sleeve. Figs. 12, 13, and 14 are views ofsuitable bolts to which my improved insulation may be applied. Fig. 15is a transverse sectional view `of the bolt sh'own in Fig. 12 and Fig.16 is a transverse sectional view of the bolt shown in Figs. 13 and 14.Fig. 17 is a transverse sectional view on the line a3 a: of Fig. 11.Fig. 18 is an end view of the armored insulation constructed inaccordance with Figs. 11 and 17.

One of the applications of my invention, of which there are many, is forinsulating the shanks and heads, as well as the nuts, of bolts used ininsulated joints-as, for instance, in the insulated joints ofrailroad-rail sections.

I am not to be understood as limiting myself to any particular use of myinvention, for the improved insulating parts for carrying out theobjects I have in view maybe utilized wherever found applicable. Inthose cases in which the bare insulation comes in contact with metallicparts in which there is a certain amount of movement there is apt to bewear upon the insulation, which is injurious to the same and may causeshort circuits.

I have found that by providing the insulating sleeves, bushings,washers, and other parts, as desired, with metallic armor, as it were,all the advantages of the high-insulating properties of the best fibermay be obtained without wear upon the insulation itself. All rubbingcontacts according to my construction will take place between themetallic armor of the insulation and the parts for which insulation isdesired.

Referring to the drawings, in Fig. 1 the insulating sleeve or bushing A,which may be of any suitable insulating material, is shown provided witharmored sleeves B and C both inside and out. suitable metal, and in Fig.2 the ends D of the sleeves are shown bent toward each other to firmlyhold the insulating-sleeve A in p0- sition. In Fig. 3 the edges'of theouter sleeve O are shown bent outwardly to form Ilan ges. Thisconstruction alIords provision for preventing the sleeve from slippingwhen placed in the apertures of the web of a rail-for instance, toinsulate the bolts from the railweb.

In Fig. 7 there is an insulating-washer F of suitable material shownencircling one end of the insulating sleeve or bushing E, and the innerand outer armored sleeves G and I-I are These sleeves may be of any'flanged at l and J to protect the Washer F. The construction such asshown in Fig. 7 may be utilized, Jfor instance, to insulate the head ornut of a bolt from the upright of the rail-chair in a railej oint orfrom the 'fish-plate.

In Fig. 8 the insulating sleeve and washer are shown in one piece andmolded to the required form. As before, there is an armored sleeve Loutside of the sleeve, While the inner armored sleeve is provided with athickened portion at P, forming a substitute 'for the usual metallicwasher used beneath the head of a bolt or adjacent the nut. l/Vith theconstruction shown in Figs. S and 9 no Washer is necessary in theposition described. ln Fig. Q the sleeve E and washer F are separate,while the armored sleeve O is provided with the thickened portion P.

In any or all of the constructions shown and described in thisapplication I am not to be understood as limiting myself to armoredsleeves upon both the inside and outside of the insulating material,'for they may be used either inside or outside, as desired, or in bothpositions. An instance of this variation is illustrated in Figs. 10 and.11, in which the armored sleeve G is shown upon the .inside only of thesleeve and Washer R. In Fig. 11 the inner sleeve S is shown enlarged atT to obviate the use of a metallic Washer.

One `form of bolt to which my improved insulation is applicable is shownin Fig. 12. ln this instance the bolt is provided with a squared portionU adjacent the head V to prevent the bolt from turning within theinsulating-sleeve.

In Fig. 17, which is a sectional view of Fig. 11 on the line r as, theinsulating part of the device is shown comprising the insulatingsleeve20, protected by the armored sleeve 21. The bore of the sleeves is madeto conform to the conformation of the portion U of the bolt, and ofcourse it is to be understood that the inner bore of the device, asshown in Figs. 11, 17, and 18, may be cylindrical, if desired. Themetallic sleeve or armor 21 may be made in any suitable manner toconform to a given cross-section.

In Figs. 13 and 14 a bolt is shown provided with an elliptical portion Wadjacent the head. In both the :forms of bolt illustrated the portions Uand Wv prevent the bolt from turning Within the insulating-sleeves. Theinsulatingsleeve forms, in effect, a ring, as shown in the drawings,which may be of any desired longitudinal extent; but I am not limitingmyself to a ring of such extent that it may be called a sleeve The ringmay be said to be provided with metallic armor for protecting theinsulating material, and in the case of the sleeve and washer it will beseen that the armor extends at each side of the washer or adjacentthereto.

Obviously some 'features of my invention may be used Without others, andmy invention may be embodied in Widely -varying forms.

Therefore, Without limiting myself to the construction shown anddescribed nor enu merating equivalents, l claim, and desire to obtain byVLetters Patent, the folhiiwingz 1. As an improved article ofmanufacture, an insulating-ring of suitable material, provided withmetallic armor upon both the interior and exterior thereof, the edges ofboth interior and exterior armor beyond the edges of said ring beingturned transversely to the insulating-ring, substantially as and for thepurposes set forth.

2. As an improved article of manufacture, a cylindricalinsulating-sleeve of suitable material, provided with metallic armorupon both the interior and exterior thereof, one of said pieces of armorhaving its extreme edges beyond the edges of the sleeve bent ontuwardly, said sleeve and armor being open at both ends and therebyadapted to be slipped over the middle portion of a relatively long partto be insulated, for substantially the purposes set forth.

3. As an improved article of mamrfaeture, an insulating-sleeve ofsuitable material and an insulating-washer, and metallic armor for atleast one of the surfaces of the sleeve, said. armor extending at oneside of the washer, for substantially the purposes set forth.

4. As an improved article of manufacture, a hollow cylindricalinsulating-sleeve of suitable material and an insulating-washer, thesleeve being provided with hollow interior metallic armor extendingoutwardly adjacent to the washer, for substantially the pur poses setforth.

5. As an improved article of manufacture, an insulating-sleeve ofsuitable material and an insulating-Washer, the insulati ngsleeve be ingprovided with an interior 'metallic sleeveforming armor provided with athickened flanged portion extending outwardly adjacent to the washer,for substantially the purposes set forth.

6. As an improved article of manufactm'e, a hollow bushing of insulatingmaterial, and a hollow protective armor 'for one of the surfacesthereof, said bushing and armor having an oval interior contour, wherebythe retation of a bolt of cooperating cross-section is prevented, forsubstaiitially the purposes set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing Witnesses.

GEORGE A. NEBER- l/Vitnesscs:

l1. VAN ZANDT, H. G. OeDEN, Jr.

IOO

IIS

